Gas-scrubbing apparatus.



E. P. LLOYD. 1 GAS SGRUBBIN APPARATUS.

APPLICATION 11111.20, 191s.

11,073,259 Patented Sept. 16,1913.

Emma/bo a 1 Er/2615f]? ZZoycZ rrnn srairas PATENT OFFICE.

ERNEST F. LLOYD, OF DETROIT, MICHIGAN.

GAS-SCRUBBING APPARATUS.

Specification of Letters Patent.

Patented Sept. 16, 1913.

Application filed January 20,-1913. Serial No. 743,060.

an effective cleansing of crude gas is obtained in a con'iparativelysmall space.

.The invention consists in 'the matters hereinafterset forth, and moreparticularly pointed out in the appended claims and shown in theaccompanying drawing in which to-form 'a cylindrical casing.

drum 1 has an inlet pipe 2. i The top drum Figure l'is a view insection, largely diagrammatic, of "a scrubber embodying features of theinvention. horizontal section. a

As herein illustrated, a series'of cylindrical drums are mounted oneabove the other The base 3 has a outlet pipe; and a cover 5 withstalling box 6 acting as a guide bearing. for an upright shaft 7extending through the lower drum with its lower end stepped in asuitablepivot bearing 8; A stufling box E) in the base 10 of the drum 1 preventsleakage around the shaft, which may be driven as by a pulley 11 or othersuitable means.

The intermediate drums 12 are separated from-the end drums and from eachother by horizontal annular diaphragms 13 which may be convenientlysecured between flanges 14 on the drums. r

Each diaphragm has an inner annular flange 15 and radial ribs 22 ofsuitable height to retain a body of liquor on the diaphragm. A plate 16is secured on the shaft 7 between each pair of diaphragm's and has anannular rim or flange 17 on its upper face which separates animperforate central body'of the plate from an outer marginal portionwhich is provided with a plurality of apertures 18. A depending rib 19is formed on or secured to the lower face of each diaphragm above theadjacent plate. of son'iewhat lesser diameter than that of the pl ate.Obliquely disposed scoops 20, preferably tubular as herein indicated,are secured to the plate and extend through the Fig. 2 is a View in'imperforate body, the lower end or part of each scoop hanging below theplane of the upper edge of the inner diaphragm flange 15 so as to dipbelow the surface of liquid on the diaphragm, and the upper end of eachscoop being arranged to discharge againstthe under face of the adjacentdiaphragm inside the rib 19. A drain pipe 21 for the base drum 2completes the apparatus.

In operation the several drums are filled with liquor and the shaftrotated so that the scoops take up the liquid, and dash it against theunder sides of the diaphragm above them. From this point it drops backon to the. plates and is thrown centrifugally outward, and upward onabout the path indicated' by dotted lines, being trapped and turned backon to the perforated margins of the plates by the depending ribs. It isthrown from these margins by centrifugal force against the surroundingwalls of the drums. As a consequence, gas entering the base drum throughthe inlet and finding its -way through the central opening of theadacent diaphragm, is forcedto pass through successive sheets of spraybefore it reaches the succeeding diaphragm opening, and is thusthoroughly washed by the liquor.

The capacity of the scrubber and the thoroughness of the washing may beincreased by adding intermediate sections or drums as is necessary. Butlittle floor space is requiredand the scrubberis readily taken apart forcleansing or repairing.

Obviously, changes in details of construction may be made withoutdeparting from the spirit of the invention and I do not limit myself toany particular form or arrange-.

ment of parts. What I claim as my invention is 2* 1. A gas scrubbercomprising an upright cylindrical casing with gas inlet at its lower enda'ndgas outlet at its upper end, divided by a series of annularreservoirs, a rotatable shaft concentric in the casing extending throughthe reservoir openings and having plates between each pair'ofreservoirs, means on each plate adapted when the shaft is rotated tothrowthe contents of the adjacent lower reservoir toward the under sideof the adjacent upper reservoir, ani means on the plate adapted todivert liquor from the upper face thereof against the under side of theupper reservoir and the wall of the surrounding casing when the shaft isrotated.

2. A gas scrubber comprising an upright casing divided by transversediaphragms having a central flanged opening and constituting annularliquor reservoirs, a rotatable shaft extending through the openings,plates on the shaft above each reservoir provided with scoops adapted todip into the reservbir contents and project it against the adjacentupper diaphragms when the shaft is rotated, means on each plate adaptedto deflect liquor thrown therefrom by centrifugal force against the faceof the adjacent upper diaphragm, and means for returning the liquor onto the plate outside the deflecting means. t

3. A gas scrubber comprising an upright cylindrical casing having a gasinlet at its lower end and a gas outlet at its upper end, transversediaphragl'ns having central flanged openings and constituting annularliquor reservoirs in the casing, a rotatable shaft extending through thediaphragm openings, plates on the shaft between the reservoirs eachhaving a central imperforate body and an apertured marginal portion,scoops, extending through the imperforate body of each diaphragm adaptedto dip into the contents of the adjacent lower diaphragm and todischarge against the underside of the upper diaphragm when the shaft isrotated, a flange on the upper face of each plate surrounding theimperforate body that is adapted to project liquid thrownofl" theimperforat e' body by centrifugal force against the under side of theadjacent upper diaphragm, and a deflecting rib on the under side of eachdiaphragm adapted to direct liquor projected against it on to theapertured portion of the plate. h

4. A gas scrubber comprising an upright cylindrical base section havinga gas inlet, a corresponding top section having a gas outlet,intermediate cylindrical sections supported 0n the base, a diaphragmsecured between each pair of sections and provided with a centralopening, an annular flange surrounding each diaphragm opening, a ropipefrom the base section;

tatable shaft extending through the openings of the diaphragm, a plateon each shaft between each pair of diaphragms, an annular flange on theupper face of each plate concentric with the shaft, scoops obliquelydisposed on the plate Within the annular flange whose lower ends extendbelow the plane of the upper margin of the adjacent central flange ofthe diaphragm and whose upper ends are adjacent the upper diaphragm, anannular rib on the under face of each diaphragm concentric with andbetween the outer edge of the adjacent plate and the annular flangethereof, and a drain 5. A gas scrubber com arising an uprightcylindrical base provide with a gas inlet, intermediate cylindricalsections secured on the base as extensions thereof, a top sectionresting on the intermediate sections and having a gas outlet, diaphragmseach having a central opening surrounded by an upright flange, eachsecured between a pair of sections,a shaft concentrically journaled inthe casing extending through the central openings of the diaphragms,stuffing boxes in the base and top sections, a circular plate secured onthe shaft between each pair of diaphragms having a central imperforatebody surrounded by an annular, flange, and an outer apertured marginalportion, scoops se-- cured to the imperforate portion whose lower endsextend below the upper margin of the central flange of the adjacentlower diaphragm, and whose upper ends are adjacent the under side of theadjacent upper diaphragm, and a' depending rib on the under side of eachdiaphragm concentric with and within the outer margin of the adjacentplate.- a

In testimony whereof I aflix my signature in presence of two Witnesses.

ERNEST F. LLOYD.

Witnesses:

C. R. STICKNEY, ANNA M. DORR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. 0.

